You can upload an image or other media using the Media Browser or Media Library. Use Ctrl-select or Shift-select to upload multiple media files in either tool. In the Media Library, you can also upload a zipped package.
You can even email attachments and import them into the Media Library. You can also use your mobile phone to email an attachment to Claro!
See The Media Library, The Media Browser, Upload media from my computer, Upload a zip file, Email an attachment and import it for more information.
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